chemistry 20

This week in chem 20 we are going to begin with a very smelly but very interesting lab! It demonstrates the indicator ability of red cabbage juice - basically we are making cabbage soup and testing to see what color it changes! After that we will dive into what an acid and base really is, and get into how scientists measure the strength of acids and bases.

Last week the chem 20s completed the midterm, and did quite well overall. Many students improved their class mark but more than 10%! Friday, the students were given an in class assignment that they were to perform with a partner. Due to shortened class length we will be finishing this assignment on Monday, but I found the kids really enjoyed this type of assessment (many kids came up to me and said they liked it!)

This week is all about the midterm... and solubility! I have given the kids 3 periods to prepare for the midterm (as we were ahead of the other class) in hopes that they are ready to rock this midterm! After the midterm we will be focusing on solubility and performing the systemic qualitative analysis lab. This lab is key to understanding in chem 20, and will be tested on the final exam, so it is very important!

After a (hopefully) wonderful spring break of relaxation and no chemistry homework, the students should be ready and excited to get back into chemistry class... I'm sure... This week is the final week prior to the midterm in chemistry, and the start of the final term of this school year! Only 40 classes until exam break people!!! Start studying now!

Prior to the break, we got started on the third unit in chem 20: solutions. This is one of the most important units in chem 20, as it does cross over into one of the more heavily weighted units in chem 30. So we are going to move on with solutions, and then get ready for the midterm coming next week!